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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Host-guest chemistry ; Macrobicyclic ligand ; Alkali metal complexation ; Complex formation ; Cesium selectivity ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A Large Macrobicyclic cavity for the Selective Complexation of Alkali Metal IonsThe preparation of the new ligand 3 was carried out starting with the podand 8 and the triamine 11. Ligand 3 forms complexes with alkali metal ions in solution (chloroform) as well as under the conditions of FAB mass spectrometry, whereby Cs⊕ selectivity is observed.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    ISSN: 0009-2940
    Keywords: Chromoionophore ; Chromoacerand ; Cryptand ; Dipyrrin ; Metal complexes ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A Dipyrrino Cryptand  -  Synthesis, Crystal Structure, Metal ComplexationThe orange red cryptand 1, containing a dipyrrin chromophore, has been synthesized in seven steps. Its C2-symmetrical X-ray structure exhibits a planar dipyrrin unit and a twisted but not collapsed crown ring, two of the ether oxygen atoms projecting outwards. The complexation of alkali and transition metal cations by this concave dyestuff leads to changes of the color and to strong shifts in the UV/Vis spectra.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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